Brake mechanism



H. JOSEPHSON.

BRAKE MECHANISM.

APPLICATION FILED JULY'IQnIQH.v

Patented Oct. 14, 1919.

2 SHEETS-SHEET l- Y In venhf' H. JOSEPHSUN.

BRAKE MECHANISM.

APPLICATION FILED 1uLYl9.|911.

1,318,497. Pnmed oct. 14,1919.

2 SHEETS-SHEET 2.

UNITED sTATEs PATENT oEEIoE.

HENRY JOSEP-HSON, OF CLEVELAND, OHIO.

BRAKE MECHANISM.

Application filed J'uly 19, 1917.

To all ywhom t may concern.

4Be it known that I, HENRY JosEPHsoN, a citizen of the United States ot' America, residing at Cleveland, in the county of Cuyahoga and State ot'Ohio, have invented certain new and useful Improvements in Brake Mechanism; and I hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

This invention relates to improvements in brake mechanism forautomobiles or motorvehicles.

One object of this invent-ion is not only to 'provide brake mechanism of the character indicated comprising means for eii'ecting the actuation of one brake-shoe into its braking position during the actuation of another brake-shoe into its braking position, but to re'nder each brake-shoe capable of 'being actuated intovits braking position independently of the other brake-shoe.

Another object is to provide such an operative connect-ion between said brake-shoe and a suitably operated endwise shiftable rod that only one brake-shoe is actuated into its braking position, or both brake-shoesare shifted into their braking position, according as said rod is actuated endwise in the one or the other direction. v

Another object is to have the last-mentioned brake-shoe, notwithstanding said operative connection between said rod'and 'both brake-shoes, shiftable independently into its braking position.

Another object is to effect the actuation of one brake-shoe into its braking position during the actuation of one rod endwise in one direction, to etiect'the actuation of another brake-shoe into its braking position during `the actuation of another rod endwise in one direction, and to eti'ect the actuation of both of said brake-shoes into their braking position during the actuation of one of said rods in the opposite direction.

Another object is to have two brake-shoes normally loose relative to and shifta'ble into braking engagement with one-and the same brake-drum, to provide Ine-ans whereby said brake-shoes are shiftable simultaneously into 'braking engagement with said drum, and to have each of said brake-shoes shiftable into Specification of Letters Patent.

Patented Oct. 14,1919.

serial No. 181,566.

member of a brake-drum, to have another brake-shoe arranged externally of said brakemember of said drum, and to render said brake-shoes capa-ble of being actuated independently or simultaneously into braking engagement with said brake-member of the drain.

Another object is not only to provide such an operative connection between a brakeoperating rock-shaft having an arm and one brake-shoe that said brake-shoe is actuated into its braking position during the required rotation of said shaft, and to provide mechanism for effecting the actuation of said arm in the direction required to effect said rotation of said shaft during the actuation of another brake-shoe into its braking position, and .toprm-'ide such an operative connection between said arm and an endwise shiftable rod that endwise movement of said rod in said direction effects the actuation of said arm in said direction against the action of resilient means, but to render the last-inentioned brake-shoe capable of being actuated into its braking posit-ion independent-ly of said arm and rod and to have the aforesaid actuation of said arm by the aforesaid 1nechanism independent of said rod, so that braking movement of the aforesaid shaft can be effected independently of or by said rod and Ithe last-mentioned brake-shoe can be actuated, independently of said rod, into its braking position inde endently of or simul-` taneously with the rst-mentioned brakeshoe. f Another object is to provide such ani operative connection between one brake-shoe and a lever adapted for use in the actu-ation of said brake-shoe into its braking position that said brake-shoe can be actuated into its braking position by ythe required operation of'or independently of said lever, and to pro# vide such means ias will render-"another brake-shoe capable of being actuated, inde pendently of said lever, into its 'braking po- Sition independently of or simultaneously with the first-mentioned brake-shoe.

Another object is to render my improved bra-ke mechanism simple and durable in construction and reliable in its operation, to provide for yand facilitate relative adjustment of component parts of said mechanism, and to render the construction and relative arrangement of the parts such that the component parts are readily assembled and not liable to get out of order.

With these objects in view, and to att-ain any other object hereinafter appearing, this invention consists in certain features of construction, and combinations and relative arrangement of parts, hereinafter described in this specification, pointed out in the claims, and illustrated in the accompanying drawings.

In said drawings, Figure 1 is a top plan illustrating brake-mechanism embodying my invention, and portions are broken away in this figure to reduce the size of the drawing. Fig. 2 is a vertical section taken along the line 2 2, Fig. 1. Figs. 8, 4: and 5 show a portion of Fig. 2, but in Fig. 2 both illustrated brake-shoes are shown in their normal and non-braking position, whereas both of the brake-shoes are shown actuated into Itheir braking position in Fig. 4, and Figs. 3 and 5 illustrate the actuation of said brakeshoes into their braking position independently of each other. Fig. 6 is a vertical section, in detail, taken along the line 6 6, Fig. 2. Fig. 7 isa vertical section, in detail, taken along the .line 7 7, Fig. 6. Fig. 8 is a vert-ical section, in detail, taken along the' line 8 8, Fig. 6. Figs. 6, 7 and 8 are drawn on a larger scale than Figs. 1, 2,3, 4 and 5.

Referring to said drawings, A indicates a suitable operated rotatable rear axle-section of an automobile or motor-vehicle, and a indicates the hub of a wheel operatively connected with said axle-section. A casing B, which is rigid with the transmission-case C of the (automobile, surroundssaid axle-section, and a brake-drum, arranged adjacent the'inner end of the' hub a and suitably secured to said hub, has its annular brake member a arranged concentrically relative to said hub and the connected axle-section. The casing B is provided, at the inner end of the brake-drum, with' two arms b and b projecting forwardly and rearwardly respectively. y

D indicates the inner brake-shoe arranged y internally of the brake-drum and held from rotating by a stud 10 rigid with the rearwardly extending arm b of the axle-casing B. Said brake-shoe is normally in suitable proximity and loose relative to the internal surface of the annular brake-member a of the brake-drum and adapted to be actuated into 4braking engagement with said member of the drum. It will be observed therefore that said brake-shoe is normally in its nonbraking position. circumferentially of the axle-section A nearly but not entirely around said axle-secing.

Said brake-shoe extends rock-shaft E, which is substantially parallel with and forward of the axle-section A, is supported in any approved manner, as, for instance, from the transmission-case C and from the forward arm of the axle-cas- Said shaft extends between the termmal ends of the brake-shoe D and is provided with two cams 12 arranged at the forward side and rear side respectively of the shaft and adapted to engage and farther separate said ends of said brake-shoe during the rotation of the shaft the extent required in the one or the other direction and thereby actuate said brake-shoe into its braking position, shown in Figs. 3 and 4, against the action of a suitably applied spiral spring d, and cause said brake-shoe to clampingly engage the internal surface of the brake-member a of the [brake-drum; The spring al extends, as shown in Fig. 2, between and is suitably attached to opposite end-portions of the brake-shoe D. The cam-shaft E has an upwardly extending arm 13 operatively connected with a rod e extending forwardly from said arm and adapted to be opera-ted by a lever not shown, and obviously said brake-shoe is actuated into its braking position during the actuation of said rod endwise in the one or the other direction.

G indicates the outer brake-shoe which is arranged externally and extends circumferentially of the brake-member a of the brakedrunm. Said outer brake-shoe is normally loose relative to and adapted to be actuated ilto 'braking engagement with the brakedru-m. It will be observed therefore that said outer brake-shoe is normally in its nonbraking position. Said outer brake-shoe is held from rotatingV or movement circumferentially of the brake-drum by a stud 14 rigid with the rearward arm of the axlecasing B. Said outer 'brake-shoe extends circumferentially of and nearly but not entirely around the brake-drum and prefera'bly lhas its` terminal ends arranged adjacent theI forward side of the drum and spaced circumferentially of the drum.

A horizontally arranged brake-operating rock-shaft H, which iS substantially parallel with and forward* of the cam-shaft E, is supported in any approved manner, as, for instance, from the transmission-case C and from the forward arm b of the axle-casing B. The forward shaft H extends between the terminal ends of the outer brake-shoe G and is arranged therefore forward of the 'brake-drum. Said forward shaft is provided between said ends of said outer brakeshoe with two arms 15 and '16 projecting 5 with a pink 22projectin forwardl tajched at one end to said arm and at its opposite end to the shaft-arm 19, (see Fig. 1,) acts to retain said'shaft and the connected links 17 and 18 in their normal position in which the outer brake-shoe is loose relative to the brake-drum. Obviously therefore said forward shaft is adapted to make its braking movement against thev action of the spring H.

`The forward shaftI-I Ialso has an upright arm 20 which is provided at its upper end laterally of said arm into a slot 23 form linfand extending laterally through andi longitudinally of a link 24 which `extends forwardly frdin and is pivotcd, as at 25, to an upright arm 26 ofthe rearward shaft E. In the normal position of the parts, as shown in Fig. 2, the pinl 22 is arranged next forward of the facing rear end wall of the slot 23. It will be observed therefore that, when the inner brake-shoe D is actuated into'its braking position by themeans ycomprising the cams 12 of the rearward brake-operating shaft E during the rotation of said shaft by the endwise movement of the rod ein a 'forward direction, the `forwardly facing rear end wall of the slot 23 in the link 24 actuates the pin 22, and consequently the Shaft-arm 20, forwardlyfas required to effect'the braking movement of the forward brake-operating shaft H, and results, through the medium of the arms 15 and 16 of said forward shaft and the links 17 and 18, -in the actuation of the outer brake-shoe G into its braking position against the action ofthe springiH. By the construction hereinbefore described it will be observed that the rod e, the rearward brake-operating shaft E and its arms 13 and 26 and the link l direction vrequlred to actuate the Aouter 24 constitute mechanism, during the forward movement lof said rod, for effecting the forward actuation of the arm'20 of the forward brakefoperating shaftk H 'and therebyrotating said forward shaft in the brake-shoe Ginto its braking position, as shown in Fi 4, and that durmgsaid movement of sai rod `the cams 12 of the rearward shaft E effect vthe actuation of the ini ner brake-shoe D into its -brakingfpositio'n,vv

as'shown'in Fig. 4.

rThe slot23 in the. link 24 extends for@ shaft-arm 20 an wardly from theven'gaging pin 22 such a distance that said link idly moves transversely of said pin during the actuation of the rod e rearwardly as required to effect the actuation' of the inner brake-shoe D into its braking position, as shown in Fig. 3, independently of the arm 20 of the forward shaft H and consequently independently of the outer brake-shoe.

Preferably the pin 22 and the link 24 are.

relatively adjusta-ble to permit and facilitate positioning of said pin next forward of the forwardly facing rear end wall of the slot 24. Preferably, the pin 22 (see Figs. 6 and 7.) extends throuh a slot 27 formedin the arranged transversely of said shaft-arm and consequently longitudinally of said link. Preferably the shaftarm "20 isProvided at each end of its -slot 27 with a screw-threaded hole'28 which is arran ed in line endwise with said slot and exten s from said slot to the exterior of said shaft-arm, and said hole is engaged by a correspondingly screw-threaded adjusting screw 29. Preferably each screw 29 (see Fig. 7)I engagesaY cavity 30 formed in said pin 22 so as to positively prevent endwise displacement of said pin.

the shaft-arm 20, and consequently longitudinally of they link 24, by a proper mampulation of the adjusting-screws 29, and said screwsare secured in the desired adjustment .by tightening .the lock-nuts 32 "which are shown mounted externally of said shaftarm on said screws, and said pin is firmly held by and between said screws.I

'Die arm l2O of the forward brake-operating shaft H is provided with anotherpin 34 i shown spaced downWardl from the pin 22 and projecting laterally o said arm into a' fect the actuation of the outer brake-shoe G.

into its braking position, so that the forward movement of said rod .k independently of the rod e results in the actuation of the said outerl brake-shoe into its braking position independently of the inner brake-shoe D. The pin 34 of the shaft-arm 20 (see Fig. 8)

lis shown abutting at its rear side against the forward or inner end of'a screw 36 which `is vthreaded into the rear end wall of the slotV 35'and arranged in line endwise and extending into said slot and has its inner en'd arranged to fonia an wbutmentvfor said .pin of said shaft-ar n. Itfwill be observed therefore that said abutmentfor the pin 34 is ad- Ijustable en dwrse' of the rod k, and that con- Obviously said pin 22 can be readjusted transverselyof,

sequently the abutment-forming screw 36 and said pin are relatively adjustable to facilitate establishing operative connection, during the assemblage of the parts, between -v said pin and said rod. A. lock-nut 37 is mounted on the screw 36 externally of and at the rear end of the rod L and locks said screw in the desired adjustment. Obviously upon manipulating the lock-nut 37 to loosen it relative to the rod h the screw 36 of said rod is rendered free to i'be manipulated as required to readjust said screw endwise of said rod, whereupon said lock-nut is manipulated as required to retighten it relative to said rod.

The rod h (see Figs.m1 and 2) isshown operatively connected with a suitably supported lever 38, and it will be observed that said rod and its screw 36, the shaft H and its arms 15 and 16, and the links 17 and 18, form such an operative connection between said lever and the outer brake-shoe G that movement of said lever in the direction required to actuate said rod forwardly results in the actuationl of said brake-shoe intoiits braking position. A stop formed by an aV m 39 of the transmission-case C prevents mov ment of the lever 38 in the opposite direc tion.

The slot 35 inthe rod L extends such a distance forwardly of the engaging pin 34 of the shaft-arm 20 that said arm is movable forwardly independently of said rod, so that endwise movement of said rod and disturb- 35 ance of the lever 38 during the actuation of said arm forwardly by the link 24 during the forward endwise movement of the rod e, as required to actuate the outer brake-shoe and the inner brake-shoe simultaneously into their braking position, are avoided.

By the construction hereinbefore described l it will be observed that my improved brakeoperatin means comprises mechanism (the cam-sha t and its arm 13) for actuating the inner brake-shoe D into its braking position and that said mechanism isoperated to actuate said inner brake-shoe into its braking position by and during endwise movement of the rod e in the one or the other direction; that the rock-shaft H and its arms 15, 16 and 20 and the links 17 and 18 constitute mechanism whereby. the outer brake-shoe G is actuated into its braking position independently of the rod e and inner brake-shoe; that the pin 22 of the shaft-arm 20, the forwardly facin end wall of the slot 23 in the link 24 and t e arm 26 of the cam-shaft constitute means forming such an operative connection between the shaft-arm 20 and the ca1n-shaft that, during the actuation of the Y inner brake-shoe into its braking position by the forward actuation of the rod e, the shaft-arm 20 is actuated forwardly as required to effect the rotation of the rock-shaft H in the direction required to actuate the outer brake-shoe into its braking position; that the rod e and the connected mechanism consisting of the cam-shaft and its arm 13 for actuating the inner brake-shoe into its braking position during rearward endwise movement of said rod are, during said movement of said rod, independent of the rod h and the mechanism comprising the rockshaftH and its arms 15, 16 and 20 and the links 17 and 18; that the rod L and the con- 75 nected mechanism (the shaft H and its arms 15, 16 and 2O and the links 17 and 18) for actuating the outer brake-shoe into its braking position during forward endwise movement of the rod L by the lever 38 are, during 80 said movementof said rod, independent of the rod e and the mechanism comprising the cam-shaft and its arm 13, and that obviously the actuation of the inner brake-shoe into its braking position by and during rearward endwise movement of the rod e and the forward endwise movement of the rod L to effeet the actuation of the outer brake-shoe into its braking position are wholly independent of each other without interfering '90 with the actuation of the inner brake-shoe into its braking position by and during forward endwise movement of the rod e.

What I claim is l. The combination, with two brake-shoes, and a movable actuating member, said brakeshoes being in their non-braking position in the normal position of said actuating member, and said Iactuating member being movable in the one or the other direction from its normal position, of means whereby both brake-shoes are operated during movement of said actuating member in one direction from its normal position and only one of said brake-shoes is operated during movement of said actuating member in the opposite direction from its normal position.

2. The combination, with two brake-shoes, and a forwardly and rearwardlyextending endwise yshiftable rod, said brake-shoes being in their non-braking position in the normal position of said rod, and said rod being movable forwardly or rearwardly from its normal position, of means whereby, when said rod is moved forwardly, both brake- 115 shoes are operated and, when said rod is moved rearwardly only one o'f said brakeshoes is operated.

3. The combination, with two brake-shoes, and an actuating member, said brake-shoes 120 being in their non-'braking position in the normal position of said actuating member, and said actuating member in said position being movable in the one or the other direction, of mechanismv operatively connected 125 with said actuating member and with one brake-shoe and adapted to be operated to operate said brake-shoe during movement of said actuating member in one direction from its normal position, mechanism opera- 130.

tively connected with the other brake-shoe and adapted to be operated to operate said brake-shoe independently of theaforesaid actuating member, and means forming an operative connection between said actuating member and the second-mentioned mechanism during the actuation of said actuating member in the opposite direction from its normal position.

4:. The combination, with two brake-shoes, and an endwise shifta'ble rod, said brakeshoes being intheir non-braking position in the normal position of said rod, .and said rod.

in its normal position being movable in the one or the other direction, of mechanism operatively connected withv said lrod and with one brake-shoe 1 and adapted. to be operated to operate said brake-shoe during movement of said rod endwise in one direction from itsn normal position, VI nechanism operatively connected with the other brakeshoe and adapted to be operated to operate said brake-shoe independently of said rod, and means forming an operative connection between said rod-and the second-mentioned mechanism during movement of said rod endwise in the opposite direction from its normal position. l,

5. In brake-mechanism, a brake-shoe normally in its non-brakin position, 'a'. rockshaft having an arm, suoi nection between said shaft andthe aforesaid brake-shoe that said brake-shoefis ac tuated into vits braking position during the required rotation of vsaid shaft, mechanism for effecting he actuation of thefaforesaid arm in the direction required to effect said rotation of said shaft, an endwise shiftable rod, said arm l'being movable independently of said rod in said direction and independently of the aforesaid mechanism,

and such an operative'connection between said rod and said arm thatl endwise movement of said rod in said direction effects the actuation' of said arm independently ofsa-id mechanism-.1' i

` -6. In brake-mechanism, a brake-shoe normally\ in itsl non-braking position, a rockshaft having an arm provided with a laterally projecting pin, such an operative connection between said shaft and the aforesaid brake-shoe that said brake-shoe is actuated' into its braking osition during the rotation of said shaft in the required direction, mechanism for efectin the actuation of the aforesaid arm inthe irection required to effect said rotation of said shaft, and an endwise Ashiftable lrod adapted during endwise movement thereof in one direction to effect said rotation of said shaft and provided with a longitudinal slot which isp, kengaged by the aforesaid pin and having an abutment for said pin at one side of the pin, said slot extendin Such a distance beyond the opposite si e of pin in said direction as to an operative conrender said arm movable in said direction independently of said rod, said pin and said i quired rotationof said shaft, mechanism for effecting -the actuationof the aforesaid arm in the` direction required to' effect said rotation of said shaft, and an endwise shiftable rod adapted during endwise movement thereof in vone direction to effect said rotation of said shaft and provided-with a longitudinal slot whichk is engaged by the aforesaid vpin and having a screw which is threaded into they rod and entends into and endwise of the slot and forms an abutment for said pin at one side of the pin, said slot extending such a distance beyond the opposite side ofpsaid pin in said direction as to render saids'arm'movable in said direction independently of said rod.

8. In brake-mechanism a brake-shoe normally 'in its non-braking position, a rockshaft having an arm, ysuch an operative connection between said shaft and the aforesaid brake shoe that said brake shoe.

is actuated into its braking position dui'- ing the required rotation` of said shaft,

mechanism for. effecting the. Iactuation of said arm the direction required to effect said rotation of said shaft, an endwise shiftable rod, resilient means, such an operativev 9. In brake-mechanism, a brake norf mally in its,non-braking position, a rockshafthaving an arm, such .a1-1 Qperative connectionbetween said shaft and the aforesaid brake-shoe that Ysaid brake-shoe is actuated into itsbraking position during vthe required rotation of said "shaft,an .end-

wise shiftablerod, such an operative connection-between said rod and the aforesaid arm that, endwisemovement of said rod 1n- .One direction effects the'aforesaidf rotation of said'y "shaft,. mechanismy inde endent' of said( rod for effecting the actuation ofsaid arm in the lilirectio'n required toefectsaid rotation of said shaft, said mechanism coni- 'prising a rock-shaft having an arm, and

such an operative connection between said arm of the second-mentioned lshaft and the aforesaid arm of the first-mentioned shaft that the aforesaid rotation of said firstmentioned shaft is effected during the actuation of said arm of the second-mentioned shaft in the direction in which said arm of the first-mentioned shaft is actuated to effect said rotation of said first-mentioned shaft, said arm of said first-mentioned shaft being movable in said direction independently of said armof the second-mentioned shaft and independently of the aforesaid rod.

10. In brake-mechanism, a brake-shoe normally in its non-braking position, a rockshaft having an arm, such an operative connection between said shaft and the aforesaid brake-shoe that said Vbrake-shoe is actuated into its braking position during the s v fect the aforesaid rotation of said shaft,

said mechanism comprising a rock-shaft having an arm and instrumental in effecting the actuation of the second-mentioned brakeshoe into its braking position, and a link pivoted to said arm of said second-mentioned shaft and extending from said arm of said second-mentioned shaft to and beyond the aforesaid arm of the first-mentioned shaft and having a lateral slot eX- tending longitudinally of the link, said arm of said first-mentioned shaft being provided with a pin, said slot being engaged, adjacent its end wall which faces in the direction in which 'said arm of said rst-mentioned shaft is actuated to effect the aforesaid rotation of said first-mentioned shaft, by said pin, and said pin'being adjustable endwise of said slot.

11.' In brake-mechanism, a brake-shoe normally in its non-braking position, a rockshaft having an upright arm, such an operative connection between said shaft and the aforesaid brake-shoe that said brake-shoe is actuated into its braking position during the required rotation of said shaft, another brake-shoe normally in its non-braking position, mechanism instrumental in effecting the actuation ofthe aforesaid arm in the direction required to effect said rotation of said shaft and comprising a rock shaft arranged rearward of the first-mentioned or forward shaft and instrumental in effecting the actuation of the second-mentioned brake-shoe into its braking position and having -anfupright arm, and a link pivoted to saidarm of the rearward shaft and extending forwardly from said arm of said rearwardshaft to and beyond the aforesaid arm of the forward shaft and having a lateral slot extending longitudinally of the link, said arm of the forward shaft being provided with a pin extending into said slot adjacent the rear end of the slot and being adjustable endwise o f the link.

12. In brake-mechanism, a brake-shoe normally in its non-braking position, a rockshaft having an arm, such an operative connection between said shaft and the aforesaid brake-shoe that said brake-shoe is actuated into its braking position during the required rotation of said shaft, mechanism instrumental in effecting the actuation of said arm in the `direction 'required to effect said rotation of said shaft and comprising a rock-shaft having an arm, a link pivoted to said arm of the second-mentioned shaft and extending from said arm of said second-mentioned shaft to and beyond the aforesaid arm of the first-mentioned shaft and having a lateral slot eX- tending longitudinally of the link, said arm of said first-mentioned shaft being provided at one side of said link with a slot extending endwise of the link, a pin extending from within said slot in the link into the slot in said arm of said first-mentioned shaft, and two screws arranged inline endwise with the last-mentioned slot at opposite Sides respectively of and supporting said pin and threaded into said arm of said firstmentioned shaft. y 13. The combination, with a rotary member, a brake-drum connected and rotatable with and arranged concentrically relative to said rotary member, and two brake-shoes normally loose relative to and shiftable into braking engagelnent with the drum, of an endwise shiftable rod, and means whereby only ,one brake-shoe is actuated into braking engagement with the drum, or both brake-shoes are actuated into braking engagement with the drum, according as said rod is actuated endwise in the one or the other direction.

14. The combination, with a rotary member, a brake-drum connected to and rotatable with said rotary member, an outer brakeshoe arranged externally of and normally loose relative to said drum, and an inner brake-shoe arranged internally of and normally loose relative to the drum, of a rockshaft having an arm, such an operative connection between said shaft and the outer brake-shoe that said outer brake-shoe is actuated into its braking engagement with the drum during the rotation of said shaft in the required rotation, mechanism for effecting the actuation of the aforesaid arm in the direction required to effect said rotation of said shaft, an endwise shiftable rod means whereby endwise movement of said rod in one direction effects the aforesaid actuation of said arm, and meansfor actuating the inner brake-shoe into braking en- In testimony whereof, I sign the foregoing gagement with the' drum during the operaspecification, in the presence of two Wit- 10 tion gf the aforesaid mechanisnfi in ecting n essesf K the a oresaid actuation of t e a oresai arm,

said arm being movable independently of HENRY JOSEPHSON' said rod in the direction in which said rod Witnesses:

moves during the aforesaid actuation of said CASPER J. DQRER,

arm by said rod. B. C. BROWN. 

